Meson builds: Embed UAC manifest for dom_update_namespace

...when a 32-bit Windows build is being carried out. Otherwise, if we
run the tests, this test program will fail to run as any 32-bit Windows
executable with 'update' in its filename will trigger an UAC prompt,
causing it to fail to run when 'ninja test' is invoked.

examples/meson.build

@@ -1,28 +1,49 @@
 # examples
 
-# Input: xmlxx_own_dep, build_examples
+# Input: meson, xmlxx_own_dep, build_examples, generate_uac_manifest_py
 # Output: -
 
+# Generate the manifest file to embed for 32-bit builds for tests to run
+# (on 32-bit Windows, execucatables that have 'update' in their filenames
+#  are considered to trigger UAC, which will get into our way)
+
+dom_update_namespace_extra_objs = []
+if host_machine.system() == 'windows' and host_machine.cpu_family() == 'x86'
+  uac_exe_pkg = 'libxml++'
+  uac_exe_name = 'dom_update_namespace'
+  dom_update_namespace_rc = custom_target(
+    '@[email protected]'.format(uac_exe_name),
+    output: '@[email protected]'.format(uac_exe_name),
+    command: [generate_uac_manifest_py,
+              '-p=@0@'.format(uac_exe_pkg),
+              '-n=@0@'.format(uac_exe_name),
+              '--pkg-version=@0@'.format(meson.project_version()),
+              '--output-dir=@OUTDIR@'],
+  )
+  dom_update_namespace_extra_objs += import('windows').compile_resources(dom_update_namespace_rc)
+endif
+
+
 example_programs = [
-# [[dir-name], exe-name, [sources], [arguments]]
-  [['dom_build'], 'example', ['main.cc'], []],
-  [['dom_parse_entities'], 'example', ['main.cc'], []],
-  [['dom_parser'], 'example', ['main.cc'], []],
-  [['dom_parser_raw'], 'example', ['main.cc'], []],
+# [[dir-name], exe-name, [sources], [arguments], [extra_objs]]
+  [['dom_build'], 'example', ['main.cc'], [], []],
+  [['dom_parse_entities'], 'example', ['main.cc'], [], []],
+  [['dom_parser'], 'example', ['main.cc'], [], []],
+  [['dom_parser_raw'], 'example', ['main.cc'], [], []],
   [['dom_read_write'], 'example', ['main.cc'],
-    ['example.xml', meson.current_build_dir() / 'dom_read_write_example_output.xml']],
-  [['dom_update_namespace'], 'example', ['main.cc'], []],
-  [['dom_xinclude'], 'example', ['main.cc'], []],
-  [['dom_xpath'], 'example', ['main.cc'], []],
-  [['dtdvalidation'], 'example', ['main.cc'], []],
-  [['import_node'], 'example', ['main.cc'], []],
-  [['sax_exception'], 'example', ['main.cc', 'myparser.cc'], []],
-  [['sax_parser'], 'example', ['main.cc', 'myparser.cc'], []],
+    ['example.xml', meson.current_build_dir() / 'dom_read_write_example_output.xml'], []],
+  [['dom_update_namespace'], 'example', ['main.cc'], [], dom_update_namespace_extra_objs],
+  [['dom_xinclude'], 'example', ['main.cc'], [], []],
+  [['dom_xpath'], 'example', ['main.cc'], [], []],
+  [['dtdvalidation'], 'example', ['main.cc'], [], []],
+  [['import_node'], 'example', ['main.cc'], [], []],
+  [['sax_exception'], 'example', ['main.cc', 'myparser.cc'], [], []],
+  [['sax_parser'], 'example', ['main.cc', 'myparser.cc'], [], []],
   [['sax_parser_build_dom'], 'example', ['main.cc', 'svgparser.cc',
-    'svgdocument.cc', 'svgelement.cc'], []],
-  [['sax_parser_entities'], 'example', ['main.cc', 'myparser.cc'], []],
-  [['schemavalidation'], 'example', ['main.cc'], []],
-  [['textreader'], 'example', ['main.cc'], []],
+    'svgdocument.cc', 'svgelement.cc'], [], []],
+  [['sax_parser_entities'], 'example', ['main.cc', 'myparser.cc'], [], []],
+  [['schemavalidation'], 'example', ['main.cc'], [], []],
+  [['textreader'], 'example', ['main.cc'], [], []],
 ]
 
 foreach ex : example_programs
@@ -35,6 +56,9 @@ foreach ex : example_programs
   foreach src : ex[2]
     ex_sources += dir / src
   endforeach
+  foreach obj : ex[4]
+    ex_sources += obj
+  endforeach
 
   exe_file = executable(ex_name, ex_sources,
     dependencies: xmlxx_own_dep,

meson.build

@@ -157,6 +157,7 @@ dist_build_scripts_py = script_dir / 'dist-build-scripts.py'
 
 # xmlxx's own script files.
 xmlxx_script_dir = project_source_root / 'tools' / 'build_scripts'
+generate_uac_manifest_py = xmlxx_script_dir / 'generate-uac-manifest.py'
 tutorial_custom_cmd_py = xmlxx_script_dir / 'tutorial-custom-cmd.py'
 
 if maintainer_mode